Permutation and Combination Practice: 50 Core Problems for CAT Preparation

Scoring high on the quantitative aptitude section of management entrance exams requires a rock-solid grasp of counting principles. Permutations and combinations are often feared by aspirants, yet they follow predictable logical patterns once you understand how to break them down. This text-based course is designed to transition you from basic counting rules to solving complex exam-level problems with speed and accuracy. You will start by mastering foundational concepts, clarifying the core differences between ordered arrangements and unordered selections. From there, you will work through 50 carefully selected practice problems that mirror the style, structure, and difficulty of actual competitive exam questions. What you'll learn: - Understand the fundamental counting principles of addition and multiplication - Distinguish clearly between permutation and combination scenarios in word problems - Solve complex arrangement problems involving identical items, constraints, and circular seating - Apply selection formulas to grid paths, handshakes, and group formations - Use probability shortcuts and advanced distribution techniques for faster calculation - Practice systematic problem-solving steps to avoid common traps like double-counting This course is structured to build your confidence step-by-step, starting with essential definitions and formulas before moving into the 50 practice problems, each accompanied by a detailed, written explanation of the underlying logic. This course is ideal for beginners starting their quantitative aptitude preparation, as well as intermediate learners looking to sharpen their problem-solving speed. No advanced mathematical background is required to begin. Start reading today to master permutations and combinations for your upcoming exams.